it was said that that that that that boy wrote is that

it was said that that that that that boy wrote is that.据说那个男孩写的那个that是that.
1.that引导从句
2. that那个
3. that,就是that这个单词
4. that,引导定语从句,修饰前一个that
5. that,那个,形容词
6. that,还是指that这个单词本身.